Home / 87,762.12-121,111.56-47,475.93

Finding the Fourth Proportional to 87,762.12, 121,111.56 and 47,475.93

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Solution

The fourth proportional to 87,762.12, 121,111.56 and 47,475.93 is: 65,516.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,762.12 : 121,111.56 = 47,475.93 : x
  2. Step 2: Convert to fraction form
    87,762.12/121,111.56 = 47,475.93/x
  3. Step 3: Cross multiply
    87,762.12x = 121,111.56 × 47,475.93
  4. Step 4: Simplify right side
    87,762.12x = 5,749,883,944.75
  5. Step 5: Solve for x
    x = 5,749,883,944.75/87,762.12
  6. Step 6: Final answer
    x = 65,516.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.